Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1998 Oldsmobile Intrigue BaseFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNIT
| Component | Component Location |
|---|---|
| Automatic Transaxle Control (BTSI) (Buick) | Center of console. See Figure . |
| Blower Motor Control Module | In right side of heater-A/C module. See Figure . |
| Body Control Module (BCM) | Behind left side of dash, left of steering column. See Figure . |
| Cruise Control Module | Front of left strut tower. See Figure . |
| Daytime Running Lamps (DRL) Control Module | Behind left side of dash. See Figure . |
| Driver Seat Heater Control Module (Buick) | Below right side of driver seat, mounted on seat track. See Figure . |
| Electronic Brake Control Module/ Electronic Brake Traction Control Module (EBCM/EBTCM) | Below left side of dash, left of steering column. See Figure . |
| Engine Coolant Level Indicator Module | Mounted on right side of radiator. |
| Ignition Control Module (3.8L VIN K & VIN 1) | Top front of engine. See Figure . |
| Ignition Control Module (3.1L VIN M) (Buick) | Top right side of engine. |
| Inflatable Restraint Sensing & Diagnostic Module | Below carpet, under right front seat. See Figure . |
| Mobile Telephone Amplifier (Buick) | Mounted to underside of rear package shelf. See Figure . |
| Mobile Telephone Transceiver (Buick) | Under rear of console. |
| Passenger Seat Heater Control Module (Buick) | Under right side front seat, on seat track. See Figure . |
| Powertrain Control Module (PCM) | Left front side of engine compartment, in air cleaner assembly. See Figure . |
| Radio Antenna Module | Above headliner, rear windshield area. See Figure . |
| Remote Control Door Lock Receiver (RCDLR) | Left side of dash, on right side of instrument cluster. See Figure . |
| Sun Roof (Express Open) Module | Right corner of sun roof. See Figure . |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.